Math, asked by Stormer, 1 year ago

Find the 20th term from the end of the sequence 3,8,13,........,253.,Pls answer as fast as possible

Answers

Answered by PRIMEASHU
1
a=3 , d=5
a20=a+19d
=3+19×5=3+90
=93
hope it help you

raghavnaidu: take 49 as 1st term
vicky149: yes
vicky149: 158
raghavnaidu: sorry
Stormer: so whats the final answer
raghavnaidu: 168
vicky149: from starting 98 is 20th term
Stormer: ok thanks
Stormer: ya ri8
vicky149: bkz a=3 d=5
Answered by raghavnaidu
2
a=3
d=5
tn =a+(n-1)d
253=3+(n-1)5
n-1=50
n=51
n=32 is the 20th term from back
so 
t30=3+(32+1)5
     =3+165
     =168

Stormer: n must be 51 as 50=n-1,here1 goesthat side so that will be 51
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